BSA Optics 4-12x40mm Special Series Centerfire Riflescope, Matte Black Finish with 30/30 Duplex Reticle, with Rings

BSA Optics

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About BSA Optics 4-12x40 Rifle Scope

The BSA Optics Special Series 4-12X40 Centerfire Scope includes scope rings suitable for centerfire rifle applications. The BSA Special Series scopes include fully multi-coated optics, a generous eye relief and windage and elevation adjustment systems. The features of the BSA Special Centerfire Scope make it a great option for most hunting scope needs and target shooting situations. Take aim in comfort with this highly flexible BSA Optics riflescope.

BSA Optics 4-12x40 Rifle Scope Features

  • Fully Coated Optics
  • 1/4 MOA W/E Adjustments
  • Export of this product outside of the United States of America is not allowed and is controlled by the US Department of State

BSA Optics 4-12x40 Rifle Scope Specifications

4x - 12x
Objective / Field of View
40mm / 25.0' (7.6m) @ 4x at 100 yds.(100m), 10.5' (3.2m) @ 12x at 100 yds.(100m)
Main (Center) Tube Diameter
Objective Tube Diameter
Eyepiece Tube Diameter
Lens Coatings
Fully Multi Coated Optics
Reticle Image Plane (Magnifying)
Exterior Finish
Matte Black
Windage & Elevation Adjustments (MOA)
1/4-M.O.A. Per Click
Maximum Adjustment
30 MOA W & E
Exit Pupil
10.1mm @ 4x, 3.4mm @ 12x
Eye Relief
3.0" / 76.2mm @ 4x, 3.0" / 76.2mm @ 12x
Parallax Correction Control
100 Yards
Diopter Adjustment
-2 / +2
Aluminum Alloy
Nitrogen Filled
Nitrogen Purged
Waterproof / Fogproof
13.0", (330.2mm)
Mounting Length
12.8 oz., 362.9g
Special Features
Reticle Image in the Second Focal Plane.
Long Eye Relief
Mfr #

Questions & Answers Powered by TurnTo®

Questions about this item:

dale r  What is the proper adjusting procedure to get target and reticle in focus?
DENNIS G  There is normally an adjustment ring at the outer edge of the eye piece or in some cases the eye piece screws onto the scope barrel and typically has a lock ring to maintain adjustment once set. a) If the adjustment is at the end of the eyepiece sight through the scope and adjust the ring until the reticle is in focus. B) Similarly if the eyepiece screws onto the scope barrel, loosen the lock ring, turn the eyepiece until the reticle is in focus and snug the lock ring to hold the adjustment. Between the Nikon, Simmons, Burris, Leupold and BSA scopes I own they either follow the "a" or "b" methods outlined above. Note: If the reticle is in focus and the scope is not in focus when you look at normal distance this is usually an indication of a scope malfunction.
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